| Quality Standard: |
| API 5L Standard Specification for Seamless Line Pipe or Seamless Pipe Line |
| ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless |
| ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing |
| ASTM A106 Seamless Carbon Steel Pipes for oil pipeline and gas pipeline transportation |
| GB/T8162 Seamless Steel Tubes for Structural Purposes |
| JIS G3441 Alloy steel tubes for machine purposes |
| JIS G3444 Carbon steel pipes for general structural purposes |
| JIS G3445 Carbon steel tubes for machine structural purposes |
| DIN 2391 Seamless Precision Steel Tubes |
| EN10305 Steel tubes for precision applications. Technical delivery conditions. Seamless cold drawn tubes |
| EN 10297 Hot rolled seamless steel tubes with an application in the mechanical and general engineering |
| EN 10210:Seamless structural steel pipes |
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| Steel Grade: |
| API 5L: Grade A, Grade B, X42, X46, X52, X56, X60, X65, X70, X80 |
| ASTM A 53: Grade A, Grade B, Grade C, Type F, Type E |
| ASTM A519: 1010-1045, 4130-4142, 5135 |
| GB/T8162: 10, 20, 35, 45, 16Mn, 12C rMo, 15CrMo, 12C rl MoV |
| JIS G3441: SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK |
| JIS G3444: STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17, STKM 18 |
| STKM 19, STKM 20 |
| DIN 2391: St30Si, St30A1, St35, St45, St52 |
| EN10305: E235, E355 |
| EN 10297: E355K2, E470, E420J2, E590K2 |
| EN 10210: S235JRH; S275J0H, S275J2H; S355J0H, S355J2H; S275NH, S355NH; S275NLH, S355NLH |
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| Size and Specification of Seamless Pipes |
| Outer Diameter：Hot finish: 2" - 30",Cold drawn: 0.875" - 18" |
| Wall Thickness：Hot finish: 0.250" - 4.00",Cold drawn:0.035" - 0.875" |
| Length： Random Length, Fixed Length, SRL, DRL |
| Heat treatment： |
| Annealed: Bright annealed, , Spheroidize annealed |
| Normalized, Stress relieved, Cold finished, Quenched and Tempered |
| Delivery Condition ： BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C) |
| Packing：Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips |
| Test：Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield |
| strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection |
